This is another piece on a part of the Chia and cryptocurrency landscapes. See previous posts at https://rsts11.com/crypto
Many if not most Chia farmers run a full node on their farming / plotting machine. Some larger farms will use the remote harvester model, with a single full node and several machines farming plots on local storage.
If you’re using Flexfarmer from Flexpool, or just want a supplemental node (maybe to speed up your own resyncing, or to supplement decentralization on the Chia network), you might want a dedicated node that doesn’t farm or plot. And for that use case, you don’t really need dual EPYC or AMD Threadripper machines.
In fact, a well-planned Raspberry Pi 4B 4GB or 8GB system, with an external USB drive, will do quite well for this use. If you want to do a few forks as well, or another blockchain full node, a moderately-recent Intel NUC would do quite well for not much more.
So here we’ll look at three builds to get you going. Note that any of these can run a full node plus Flexfarmer if you want, or just a full node.
If you don’t already have Chia software and a full node installed, go ahead and install and sync the node on a full scale PC. it may save you five days of waiting. My original build for this use case was to test the blockchain syncing time from scratch.
Syncing from a semi-optimal Pi 4B from scratch took about 8 days, for what it’s worth. One member of the Chia public Keybase forum reported about 28 hours to sync on an Intel Core i5 12600k.
Caveat: Raspberry Pi boards are a bit more challenging to find and even harder to find anywhere near the frequently-touted $35 price point, or even under $150. And for Chia nodes, you want a minimum of the 4GB Pi 4B (8GB wouldn’t hurt). So while it’s possible to run on older hardware, it’s not recommended.
You might also be able to run on a Pi400 (the Raspberry Pi 4B in a keyboard case, which is much easier to find for $100 or so, complete). I plan to test this soon.
Raspberry Pi with external USB SSD.
This was my initial build, and today it’s running at the Andromedary Instinct providing an accessible full node for about 10-15 watts maximum.